Telegraph-call.



C. SPIHO.

TELEGRAPH CALL.

APPLICATION mw APR. s, 191e.

C. SPIRO. TELEGRAPH CALL.

APPLICATION flLED APR. s. me.

Pat( nted Feb. 13, 1917.

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CHARLES srino, or NEW YORK, N. Y.

TELEGRAPH-CALL.

Application led Apri1`6,v1916. Serial No.89,32 5.

To all whom t may concern:

'Be it` known that I, CHARLES Sriiio, a

citizen of the United States, residing at New v York, in the county of New York and State'.y of New York, have invented certain new and usefull Improvements in Telegraph-Calls, of which the following is a specification.

This invention relates to ay telegraph call and particularly to a construction wherein` the call is automatically transmitted by mechanical means and may be repeated.

The invention has for an object to provide a novel and improved construction by which upon the depression of a key lever the calling disk will be brought into electrical circuit and continuously rotated for a number of times to insure the accurate and repeated sending of the 4call or signal for any predetermined telegraph station.

A further object of: the invention is to provide improved means by which more than one series of call disks may coperate with a single set of key levers by a longitudinal shifting of the disks relative to the contact members controlled by the key levers whereby the calling capacity of the machine may be increased to a lar e extent.

Another object of the invention is to present a novel construction of contact mechanism coperating with each disk whereby the former is operated by a key lever to make contact with a disk, automatically held in such position and automatically released and contact; broken when the disk has completed its travel. A further object of the invention is to provide an improved form of call disk which is held against rotation upon its shaft and may` be arranged by the operator to send any desired call or signal.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined'by the appended claims.

In the drawings- Figure 1 is a top plan of the machine;

Fig. 2 is a vertical section thereofl online 2-2 of Fig. 1;

Fig. 3 isa top plan of the rocking beam;

Fig. 4i is a centrallongitudinal section; on line 3-3 of Fig. 2.

Fig. 5 is a detail plan of the disk shaft;

Fig. 6 is a similar view of the disk lockin-g ban; and

Specification of Letters Platent.

Patented Feb. 13, 1917.

Fig. l is an elevation o3? one of; the call disks.

In the drawings like yn1 imerals krefer to like parts in the several vie ws thereof.

' The numeral 1() designa ;es the frame of the machine which may be of any desired construction and coniigurat on'. This isprovided at each end ofthe up per portion with bearings 11 insulated from the frame and adapted to receive a disk supporting rod 12 mounted therein for rotati )n and provided with a circuit connection 12a. This rod has mounted thereon a disk ri taining shaft or sleeveV 13 of square or angular formation and adapted to be shifted ongitudinally of the rod while held against relative rotation. The shaft may be retained against rotation on therod and held in itsshifted position thereon by any desire i' means, for instance, a spring detent 14 c irried thereby to engage a seat or recess l5 i1 the rod 12.

This shaft or sleeve, as shown in Fig. '5, is formed upon its opposite sides with a series of parallel grooves 16, arranged to receive and separate in prop er alinement the series of contact or call disks 17 when mounted thereon. This call disk, as shown `in Fig. 7, is formed with ai angular slot or rrecess 18 so that the walls 19 thereof may enter the grooves 16 to hold the disk against rotation upon its shaft. Tiese walls 19 are formed with laterally disp osed guide slots 20 extending therefrom toward the periphery 21 ofthe disk. This cuter edge or periphery of the disk is provided with a continuous series of `spaced lerfs or cuts 22 extending inward therefrom to form an intermediate series of contacts 23, any one or.

more of which may be remo fed or bent back-A ward to form the proper sending or call characters upon thedisk. For example, if

its opposite side edges 27. These edges en y ter the slots 20 when the bz r is shiftedlon-` gitudinally to lock the disks in position upon the sleeve. The bar may be mounted in any desired manner, for instance, upon the under face of the angular shaft or sleeve 13 by means of headed fastenings 28 extending through slots 29 in the bar and entering the body of the sleeve, as shown in Fig. 4. One end of the bar may also be provided with an operating li or handle 3() for shifting the same. It wil be seen that when the notches 26 are in alinement with the grooves 16 on the shaft the "call disks may be slipped into position and then locked by shifting the bar to bring the notches out of alinement.

Each call disk coperates with a contact lever 31 pivotally mounted upon a cross rod 32 mounted at its opposite ends in insulated bearings 33 carried by the frame 10. The vertical arm 34 of this lever is provided with a contact spring 35 secured thereto at 36 from which oint a -circuit connection 37 extends to a binding post 38 upon the frame. The lever 31 is formed with a rearwardly extending tail .39 from which a tension spring 40 extends to a cross bar 41 of the frame for the purpose of normally retaining the lever out of contact with the disk The lever is also provided with a forwardly extending operating arm 42, the vertical movement of which is limited by a cross rod 43.

This operating arm may be depressed to make contact by any desired form of key lever 44, for instance, pivoted at 45 and normally held in elevated position by a spring 46. The key lever is formed with a hook or riser 47 having its upper end 48 releasably engaging the free end of the operating arm 42. The finger piece 49 of the key lever is provided with a removable cap or cover 50 adapted to inclose and retain the indicating characters corresponding to the disk disposed to coperate therewith and permit such characters to be changed when other disks are used. The depression of the key lever carries downward the operating arm therewith and said lever is adapted to be restored independently thereof.

When the operating arm is depressed the tail of the contact lever is raised and the holding bail or member 51 released to automatically swing beneath said tail andretain the contact lever against the disk, as shown by dotted lines in Fig. 2. The bail member is pivoted at 52 and forced inward by a spring 53. It is also formed with a restoring lug 54 disposed above a rocking beam 55 pivoted at 56 and having at one end a lever 57 adapted to be engaged by a moving part to rock the beam.

For the purpose of rotating the disks by their supporting shaft, a driving lever 58 is pivotally mounted at 59 and provided at one side of its pivot with a bail 60 extending beneath all the key levers. This driving lever carries at its opposite end a sector 61 which is normally held in lowered position by the spring 62 extending therefrom to the frame. This sector is geared in any desired manner to cause a number of revolutions of the disk during its travel downwardly which produces a repeated or continuous sending of the call. One form of gearing comprlses a pinion 63 meshing with the sector and carrying on its shaft a gear 64, which in turn meshes with a gear 65 rotatable upon the rod 12 and connected thereto for movement in one direction by a pawl and ratchet 67. This prevents a reverse movement of the disk as the sector is raised. VIn order to secure an even rotation of this rod under the spring driving tension, a regulating device, such as a Hy wheel 24 may be secured thereon to rotate therewith.

The sector before completing its downward travel under the influence of the spring 62 engages and rocks the beam 55 against the lug 54 thus forcing outward the holding member and permitting the contact member to be withdrawn .from the disk by its restoring spring to cease sending the call. The electrical connections shown-may be arranged in any desired relation to a telegraphic transmitter or receiver', but these parts are not illustrated as they form no part of this invention. Any desired number bf key levers may be used in the machine but as they are duplicated only one thereof with its connections has been specifically described. The machine however provides for the use of the minimum number of keys with a larger number of call disks by shifting the latter relative to the key operated Contact member, and under such conditions each nger piece will contain characters indicating two or more calls. lVhen the disks are changed these characters are correspondingly changed by removing the cap upon the linger piece. ByV separately restoring the key lever and thus disconnecting the contact lever therefrom during the call sending action, the rotating means for the disk is relieved of the resistance of the key lever in its upward travel and the spring driven geared connection for repeatedly rotating the disk permitted to impart the greatest number of rotations thereto.

In the operation of the invention the desired disk is arranged to produce the call by removing the proper portions thereof and placed in the grooves upon the squared shaft where it is locked in position by the sliding bar. The key lever coperating with the disk is provided with a character corresponding to the call thereon. Upon depression of this key lever the operating arm of the contact lever is drawn downward therewith and the contact spring brought against the disk to establish electrical contact therewith, This same action swings the driving sector upward and places its spring under tension before the contact lever reaches the dis t, As contact is made the holding member is released `by the sector and forced inward by its spring beneath the tail of the Contact lever and the parts thus maintained in contact during the entire rotation of the disk. When pressure is removed from the linger piece of the key lever it is elevated by its spring, leaving the operating arm in lowered position, and the sector liiieginsits downward driving action which through its geared connection causes a cony tinued rotation of the shaft bearing the disk ,to transmit a succession of repeated calls. As the sector approaches the lower end of its travel. it contacts, with the rocking beam which through its connection with the holding member throws the latter from beneath the tail of the contact lever and holds said member in this position while the `sector is lowered. This lever is automatically withdrawn from the disk and the parts are brought to rest. It will be noted that the contact, holding and releasing actions, as well as the driving of the disk, are automatically performed through the simple depression of a key and no further action or attention by the operator is required. This particularly adapts the invention for use in small telegraph stations where the operator often has many other duties to perform and prevents the inconvenience and loss of time required in repeatedly transmitting a telegraph call by hand and insures an accurate sending of the call.

While a number of the details of this mechanism have been specifically described y the invention is not confined thereto as changes may be made therein without departing from the spirit of the invention as defined by the claims thereon.

What I claim is 1. In a telegraph call, a rotatable call .disk having contacts thereon, a cooperating contact lever, key operated means for moving said lever into contact with said disk, and means for actuating the latter for a plurality of rotations by a single operation of said key operated means.

2. In a telegraph call, a rotatable disk, a cooperating Contact lever, means for rotating said. disk, key operated means for actuating sz `d lever and rotating means wl'iereby the disk may be successively rotated by a single operation of said key operated means to effect a plurality of calls, and means for automatically retaining said lever in contact -with said. disk during the continued revolutions thereof.

3. In a telegraph call, a rotataliile disk, a cooperating contact lever, means for rotating said disk, key operated means for actuatmg said lever and rotating means wherewith said disk, and means actuated by said rotating means for releasing said retaining means.

4, In a telegraph call, a rotatable disk, a cooperating contact lever, means for rotating said disk, key operated means for actuating said lever and rotating means whereby the disk may be successively rotated by a single operation of said key o1 er-ated means to effect a plurality of calls, neans for auto-y matically retaining said lever in Contact with said disk, means directly actuated by said rotating means for releasing said re-ftaining' means, and means fn' automatically breaking contact between sa d lever and disk when the former is released 5. In a 'telegraph call, a "otatable disk, a coperating contact lever, means for rotating said disk, key operated means for actuating said lever and rotatirg means wher by the disk may be successi1 'ely rotated by a single operation of said key operated means to effect a plurality of calls, means for automatically retaining said lever in contact with said disk, means actu ited by said rotating means for releasing` said retaining means, means for automa ;ically breaking contact between said lever ai id disk when the former is released, and mea ns for restoring said key operated means independent of thek key lever to be moved thereby into contacting position with said disk.

7. In a telegraph call, a shaft provided with a call disk, a key lever, means actuated thereby for rotating said sh aft, contact lever detachably connected with said key lever to be moved thereby into coi itacting position with said disk, and means fir restoring said key lever after depression independently of said contact lever.

8. In a telegraph call, a shaft provided with a call disk, a key lever, means actuated thereby for rotating said shaft, a contact lever adapted to be actuatec to engage said disk by said key lever during its downward travel, a holding member in lependent of the key lever to retain said contact lever and disk in circuit, and means carried by the key lever te release-said co itact lever after said downward movement of the key lever.

9. In a telegraph call, a sha-ft provided with a call disk, a key lever, means actuated thereby for rotating said shaft, a Contact lever adapted to be actuated in one direction by said key lever, a holding` member to retain said contact lever and dlsk 1n circuit,

and means actuated by said rotating means for withdrawing said holding member.

10. In a telegraph call, a shaft provided with a call disk, a key lever, means actuated thereby for rotating said shaft, a contact lever adapted to be actuated by said key lever, and a pivoted spring actuated holding member adapted to be released by said rotating means and to engage and retain said contact lever in circuit.

vl1. In a telegraph call, a shaft provided with a. primary and secondary series of call disks, the latter being entirely at one side of the former, contact means coperating with the entire primary series of said disks, means for rotating said disks and actuating said contact means, and means for shifting said secondary series of disks into operative alinement with said contact means.

12. In a telegraph call, a shaft provided with a call disk, a key lever, means actuated thereby for rotating said shaft, a contact lever adapted to be moved to engagesaid disk by pressure upon said key lever during its downward travel, and means for retaining said contact lever and disk in circuit.

13. In a telegraph call, a shaft provided with a sleeve, a primary and secondary series of call disks removably mounted upon said sleeve, one of said series being disposed entirely at one side of the other, contact means coperating with one series of said disks, means for rotating said shaft and actuating said contact means, and means for shifting and retaining said sleeve longitudinally upon said shaft.

14. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a contact lever coperating with said disk and having a forwardly extending operating arm, a key lever provided with a hooked riser engaging the free end of ysaid operating arm, and means actuated by said key lever for rotating said shaft.

15. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a contact lever coperating with said disk and having a forwardly extending operating arm, a key lever provided with a hooked riser engaging the free end of said operating arm, means actuated by said key lever for rotating-said shaft, a rearwardly extending tail upon said contact lever, and a holding member adapt ed to swing beneath said tail when said contact lever is in circuit with said disk.

16. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a contact lever coperating with said disk and having a forwardly extending operating arm, a key lever provided with means engaging the free end of said arm, means actuated by said key lever for rotating said shaft, a rearwardly extending tail upon said contact lever, a,

holding member adapted to swing beneath said tail, and means actuated by said rotating means for withdrawing said holding member.

17. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a contact lever coperating with said disk and having a forwardly extending operating arm, a key lever )rovided with means engaging the free end of said arm, means actuated by said key lever for rotating said shaft, a rearwardly extending tail upon said contact lever, aholding member adapted to swing beneath said tail, means actuated by said rotating means for withdrawing said holding member, means for automatically restoring said contact lever, and means for independently restoring said key lever.

18. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a contact lever coperating with said disk and having a forwardly extending operating arm, a key lever provided with means engaging the free end of said arm, means actuated by said key lever for rotating said shaft, a rearwardly extending tail upon said contact lever, a pivoted spring pressed holding bail adapted to be operated in one direction by said tail and to swing beneath the same, and means actuated by said rotating means to engage and withdraw said holding bail.

19. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a contact lever coperating with said disk and having a forwardly extending operating arm, a key lever provided with means detachably engaging said arm for depression thereof, a driving lever provided with a bail disposed beneath said key lever, and a geared connection from said driving lever to said shaft.

20. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a contact lever coperating with said disk, a key lever provided with a detachable connection for operating said contact lever, a driving lever provided with a bail disposed beneath said key lever and a sector gear at its opposite end, and a geared connection from said sector to said shaft arranged to effect a plurality of revolutions thereof to transmit repeated calls.

21. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a contact lever coperating with said disk, a key lever provided with means for operating said contact lever, a driving lever provided with a bail disposed beneath said key lever and a sector gear at its opposite end, a geared connection from said sector to said shaft, a holding member adapted to engage said contact lever and formed with a restoring lug, and a rocking beam adapted to engage said lug and sector to release said holding member.

22. In a telegraph call, a rotatable shaft, a call disk mounted thereon and provided with duplicated call members, a contact 1ever coperating with said disk, a key lever provided with means for operating said contact lever, a driving lever adapted .to be operated in one direction by said key lever, a spring for returning said driving lever, vand a geared connection therefrom rto said shaft arranged. to effect a plurality of revolutions thereof to4 transmit repeated calls.

23. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a Contact lever coperating with said disk, a key lever adapted to operate said contact lever, ,a driving lever adapted to be operated in one d irection by said key lever, a .spring` for returning said driving lever, a geared connection therefrom to said shaft, a holding member disposed to engage said contact lever and provided with restoring means, and means arranged to engage said driving lever during its travel and to aetuate said restoring means.

24.-.. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a contact lever cooperating with said disk, a key lever adapted to operate said contact lever, means actuated by said key lever for rotating said shaft, a pivoted holding bail disposed to engage said contact lever and provided with a restoring lug, a spring for forcing said bail toward said contact lever, and a rocking beam arranged to engage said restoring lug and the key actuated rotating means.

25. In a telegraph call, a rotatable shaft,

a call disk mounted thereon, a contact lever having an arm disposed to engage said disk, a laterally extending operating arm at one side thereof, and a holding tail disposed at the opposite side thereof, and means for operating said contact lever. 9.6. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a contact lever having an arm disposed to engage said disk, a laterally extending operating arm at one side thereof, and a holdin tail disposed at the opposite side thereo key controlled means for operating said lever toward the disk, a restoring spring for said lever, a holding member mounted to engage said tail, and means for withdrawing said member from said tail.

27. In a telegraph call, a rotatable shaft, a call disk mounted thereon, a contact lever having an arm provided With a contact spring disposed to engage said disk, a forwardly extending operating arm at one side thereof, and a holding tail having a tapering upper face disposed at the opposite side thereof, means for operating said contact lever, and means to engage said tail.

28. In a telegraph call, an angular shaft provided with oppositely disposed grooves, a slotted call disk adapted to seat in said grooves, circuit means adapted to engage said disk, and means for rotating said shaft.

29. In a telegraph call, an angular shaft provided with oppositely disposed grooves,

a slotted call disk adzpted .to seat in said grooves, circuit means adapted to ,engage said disk, means for rotatiin said shaft, and means carried by :aid sha t for locking said disk thereon.

30. In a telegraph Call, an .angular shaft provided with oppositzly disposed grooves, a slotted c all disk adapted to seat in said grooves and provided `with .a locking recess, circuit means adapted to engage ,said disk, means for rotating sad shaft, and a slide bar mounted upon said shaft and adapted to enter said recess -to 190k said disk.

3l. In a telegraph call, an angular shaft provided with a seriis .of .oppositely ,dis posed grooves, slotted call disks seated in said grooves, circnit me ans adapted to enga ge said disks, means for rotating said shaft, and a slide bar secu 1ed upon said shaft and having a series of recesses in its oppo site edges, said edges being adapted to enter guide recesses at the )pposite sides of the slot in the disks.

32. In a telegraph call, a rotatable shaft provided With oppositely disposed grooves having parallel inner Walls, a slotted call disk adapted to seat ir said grooves, circuit means adapted to engage said disk, and means for Yrotating said shaft.

33. In .a telegraph call, a rotatable shaft provided with opposii ely disposed grooves having parallel inner Walls, a slotted call disk adapted to seat in said grooves and formed With opposite locking recesses, circuit means adapted tc engage said disk, a locking bar slidingly mounted upon said shaft and having opposite notches in its side Walls, and mears for rotating said shaft.

34. In a telegraph call, a rotatable supporting rod, a disk saaft secured thereon and provided With a series of oppositely disposed grooves, call disks mounted in said grooves, circuit means adapted to engage said disks, and means for rotating said rod.

35. In a telegraph call, a rotatable supporting rod, a disk sha: t secured thereon and provided with al serifs of oppositely disposed grooves, call disks mounted in said grooves, means for shifting said shaft longitudinally upon saie rod, circuit means adapted to en age less than the entire number of said d1sks, anc'. means for rotating said rod.

36. In a telegraph call, acall disk provided With a series of spaced kerfs extend ing inward from the periphery thereof to form removable contac portions.

37. In a telegraph call, a slotted call disk provided with lateral locking recesses eX- tending from the side walls of said slot.

38. In a telegraph call, a slotted call disk provided With lateral locking recesses extending from said slot and with a series of spaced kerfs extendilg inward from the periphery thereof to form removable contact portions.

39. In a telegraph call, a rotatable shaft provided with a plurality of call disks, contact-means coperating with less than the entire'number of said disks, key levers for controlling said disk rotation and said contact means, means for shifting said disks laterally of the Contact means, and a removable finger cap for said key levers adapted to retain indicating characters for more than one of said disks.

40. In a telegraph call, a rotatable call disk provided With more than one complete call signal thereon, a coperating Contact lever, key operated moans detachably connested with said lever for moving the same into contact With said disk, and means for actuating the latter for a plurality of rotations by a single operation of said key lever. In testimony whereof I aiiiX my signature in the presence of two Witnesses.

CHARLES SPIRO. Witnesses:

E. F. TIEDEMAN, WM. W. SLOGUM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

